Tubular metal chair frame



y 12, 1953 c. J. JANOSEK 9 TUBULAR METAL CHAIR FRAME Filed Nov. 26. 1949 INVENTOR. GHQ/V1.55 JA MOJEK UZZLAhQ W AT TOP/V575 Patented May 12, 1953 UNIT ED S TAT ES 638,149

TUBULAR METAL CHAIR FRAME cum-18s J; Janosek, Cleveland, Ohio; assignoo to The". Cleveland Welding Gilmparm. Cleveland; 011510, a corporation of (Ohio Application November 26, 1949, SerialNlo'. 129,645

1 Claim. 1.

The present improvements relating, as indi cated to'chairs, havemore parti'cular regard" to a currently popular type of chair largely used as porch furniture; of which the seat and back comprise complementary stamped-up metal sheets. These members are secured together at their meeting edges and then are supported in a. frame or base, formed out or re-benttubing so as to provide two U-shaped side membershav ing their-rear lower ends connected by a separate frame tying member.

The present invention has more particular regard touth'e form and construction ofthe frame for such. chair. In the past such a frame has been a singlecontinucus, metal. tube shaped to supportithe seat andback members. While suclr a frame provides the essential elements; necessary to support the seat and. back members, it presents many important difficulties. In the past theshipment from theplace of manufactureof suchchairs has been made by pachagingthe seat member, back member andframe unjoined; and supplying. the necessary bolts andnuts and di rections; for easy assembly at the place of delivery. The shipment of the frame as a single continuous metal tube resentedabulliy andex pensive packaging and. shipping problem. Also, since the said chairs areusedessentially as porch furniture, the same-problem: with regard 1 to bulkwas presented to the user who wishes to store such chairs for a period of the year when they are not in use.

My invention: permitsthe chair frame: to be constructed three separate members, the two U-shaped tubular side members and a separate frame tying her. frame permits the'p'aekaging andshippingofrthe threeseparate individual members of the chair frame in arelatively compact unit at? lessenpense and yet they may readily and easily be av sembled at the point of desired use. struction of the chair frame presents the added advantage of being easilt. taken apart and stored in a relatively smaller space during those periods of the year when such chair is not in actual use.

Such construction of the- Such con- To the accomplishment of the foregoing and related ends, said invention, then, consists of the means hereinafter fully described and particularly pointed out in the claims.

The annexed drawing and the following description set forth in detail certain structures embodying the invention, such disclosed means constituting, however, but one of various struc tural forms in which the principle of the invention may be used.

ES -Eat Intheammxeadrawing V Fig; 1 is a" front perspective View" of a chair embodying my present improvements;

Fig; 2 1318? top plan- View of the base of? a -chair frame embodying my present improvements Fig. 3 is a from? view of the base-of one of the separate sidetubul-ar irame members alone;

Fig. 5 isa front view' of the 'flame tying: mem her;

fi is aside viewof Figzfit Fig. 7 is a vertical section taken on the plane indicateclby the line 1 -'l o Fig: -2

8 15"- an alternative j oint to thatwin Rig-t vi;-

Fig. 9 is axtbp plan view of ani aiternative base ofa chair frameembodyingmy:presenirimprovemerits;

Fig: m is-a. top planz'viewlor analternative-hase of a; chair frameembodying my presentimpnove ments and Fig; 11is a1to p plan view ot an alternative-base of a chair frame embodyingmy presentimprove merits;

As" showrr in: Fig; 13, therstampedr-upw metal sheetsformin'gt the: batch" I": arrdfithe seat 2: or: the chah are secured together at @theirrmeeting' edges and then are attached at'pointS S and jpoints l' tothe two side-tubular'frame' members: 5. Each of the two side.=--tubular'fram'e: members are bent int'oE aL-Ushapeextending from endfi-toithe lower end 8 and while supportingth'e back: and; seat members; they also act as. a. resilient? member providing the chain with aispring-like comfort;

'l'lhe lower ends. 5'01;v each i. of. the sidg; tubular:

frame? members: 5 are: joined: and supported: by theilialll'lfi tying member '9:

Theme-seer: thesupporting: frame for main 7- proved chair, asshown' in Fig; Z basthe IQWen ends. 8" of: cachet the" side tubular frame members' t shaped sostliatttheiends lbarsbent atapoint it so that such ends 8 are at a 99 angle to the vertical plane of each side tubular frame member 5. A portion of each of the side tubular frame members 5, extending from the lower end 3 of such members, toward point Hi of such members, being pressed to provide one substantially fiat side to the end portion as shown in Fig. 4. A hole It is provided through the entire tube in the lower end section where one side of the tubular frame member has been substantially flattened.

The frame tying member 9 as shown in Figs. 5 and 6 a partially tubular semi-hemispherically shaped member each end of which is provided with a hole l2. Such frame tying member at each end rests firmly upon one of the side tubular frame members so that the holes l2 in such frame tying member fall directly above the holes i I in each side tubular frame member, as shown in Fig. 7. A bolt I3 is inserted through the hole H of each side tubular frame member 5 and hole E2 of each frame tying member 9, and a washer Hi and nut I 5 are securely fastened upon the extending bolt I 3, thus giving the joints strength and stability.

As shown in Fig. 7, the reason for the flattened portion of each of the side tubular frame memhers is to provide sufficient room for the head of the bolt !3 so that the head of the bolt will not extend below the lower level of the side tubular frame members 5. This provides the chair with better stability and prevents the heads of the bolt from digging into any grass car et or the like upon which the chair may be placed. The head of the bolt l3 may be inserted from the top, in which case the nut should not extend below the lower level of the side tubular frame members 5.

In Fig. 8 all of the parts of the chair remain the same except for the type joint provided, which is an alternative joint to that in Fig. 7. In Fig. 3 the frame tying member 9, instead of having holes i2 at each end, has a bolt I5 welded thereto at point [1. Such bolt I6 then is inserted into the holes ll of the side frame members 5 and a washer l8 and nut I9 are securely fastened thereon.

Fig. 9 shows an alternative base for a chair wherein the side frame members 5 are the same as heretofore shown but the frame tying member is also a tubular member of such size and shape that each end of such frame tying member is inserted into the end 8 of the side frame member 5, holes being provided in both the side frame members 5 and the frame tying member 20 at point 2|, a bolt is inserted therethrough and a washer and nut securely fastened thereon.

Fig. 10 shows an alternative base for a chair wherein the side frame members 5 are the same as heretofore shown except that the ends of such side frame members 5 are not flattened as shown inFig. 4 and the outer sides at point ID of the side frame members 5 are bumped-in and holes provided therein for a nut and bolt. The frame tying member 22 is a tubular member of such heretofore shown except that the ends 26 of such members are not bent at point In as shown in Fig. 2. The U-shaped tubular frame tying memher 2'! is so bent at points 28, and the ends of such member are of a shape and size so that each end of such frame tying member is inserted into the ends 26 of the side frame members 5, holes being provided in both the side frame members 5 and the frame tying member 21 at point 29, a bolt is inserted therethrough and a washer and nut securely fastened thereon.

The rigidity and stability of the chair have not been diminished and my improvement permits a chair to be manufactured and shipped in a convenient and less expensive manner and permits the quick and easy assembling of the chair frame at the place of delivery of the chair. It further provides the owner of the chair with a much less bulky storage problem during the periods when the chair is not in use. It also enables the owner of the chair, by breaking'it down into its less bulky parts, to transport such chair easily to summer cottages, beaches and the like. Thus, it generally increases the utility of the chair and removes many of the limitations of use imposed by the chair used heretofore.

My invention may be adapted to any material suitable for a tubular frame for a chair. It is expected that this will generally involve the use of metal tubing and more particularly steel tubmg.

Other modes of applying the principle of my invention may be employed instead of the one explained, change being made as regards the structure herein disclosed, provided the means stated by the following claim or the equivalent of such stated means, be employed.

I therefore particularly point out and distinctly claim as my invention:

A tubular steel frame for a chair, comprising two vertical spaced separate U-shaped steel tubular side members, the lower end of each such member bent to a angle to the plane formed by such member and each such end being substantially flattened on its lower side, each such bent and partially flattened end being bolted to a steel partially tubular semi-hemispherically shaped frame tying member which joins the two said separate U-shape steel tubular side members.

CHARLES J. JANOSEK.

References Cited in the file of this patent v UNITED STATES PATENTS Number Name Date 2,017,170 Smith Oct. 15, 1935 2,303,039 Gilkinson Nov. 24, 1942 2,346,448 Noblitt Apr. 11, 19 .4 2,417,733 Booth Mar. 18, 1947 

